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  <title>CodeMirror 2: C-like mode</title>
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<h1>CodeMirror 2: C-like mode</h1>

<form><textarea id="code" name="code">
  /* C demo code */

  #include
  <zmq.h>
    #include
    <pthread.h>
      #include
      <semaphore.h>
        #include
        <time.h>
          #include
          <stdio.h>
            #include
            <fcntl.h>
              #include
              <malloc.h>

                typedef struct {
                void* arg_socket;
                zmq_msg_t* arg_msg;
                char* arg_string;
                unsigned long arg_len;
                int arg_int, arg_command;

                int signal_fd;
                int pad;
                void* context;
                sem_t sem;
                } acl_zmq_context;

                #define p(X) (context->arg_##X)

                void* zmq_thread(void* context_pointer) {
                acl_zmq_context* context = (acl_zmq_context*)context_pointer;
                char ok = 'K', err = 'X';
                int res;

                while (1) {
                while ((res = sem_wait(&amp;context->sem)) == EINTR);
                if (res) {write(context->signal_fd, &amp;err, 1); goto cleanup;}
                switch(p(command)) {
                case 0: goto cleanup;
                case 1: p(socket) = zmq_socket(context->context, p(int)); break;
                case 2: p(int) = zmq_close(p(socket)); break;
                case 3: p(int) = zmq_bind(p(socket), p(string)); break;
                case 4: p(int) = zmq_connect(p(socket), p(string)); break;
                case 5: p(int) = zmq_getsockopt(p(socket), p(int), (void*)p(string), &amp;p(len)); break;
                case 6: p(int) = zmq_setsockopt(p(socket), p(int), (void*)p(string), p(len)); break;
                case 7: p(int) = zmq_send(p(socket), p(msg), p(int)); break;
                case 8: p(int) = zmq_recv(p(socket), p(msg), p(int)); break;
                case 9: p(int) = zmq_poll(p(socket), p(int), p(len)); break;
                }
                p(command) = errno;
                write(context->signal_fd, &amp;ok, 1);
                }
                cleanup:
                close(context->signal_fd);
                free(context_pointer);
                return 0;
                }

                void* zmq_thread_init(void* zmq_context, int signal_fd) {
                acl_zmq_context* context = malloc(sizeof(acl_zmq_context));
                pthread_t thread;

                context->context = zmq_context;
                context->signal_fd = signal_fd;
                sem_init(&amp;context->sem, 1, 0);
                pthread_create(&amp;thread, 0, &amp;zmq_thread, context);
                pthread_detach(thread);
                return context;
                }
</textarea></form>

<script>
  var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
    lineNumbers:true,
    matchBrackets:true,
    mode:"text/x-csrc"
  });
</script>

<p>Simple mode that tries to handle C-like languages as well as it
  can. Takes two configuration parameters: <code>keywords</code>, an
  object whose property names are the keywords in the language,
  and <code>useCPP</code>, which determines whether C preprocessor
  directives are recognized.</p>

<p><strong>MIME types defined:</strong> <code>text/x-csrc</code>
  (C code), <code>text/x-c++src</code> (C++
  code), <code>text/x-java</code> (Java
  code), <code>text/x-groovy</code> (Groovy code).</p>
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